I have been pondering on the idea of taking the CRC exam for almost a year now. I was wondering if the study guide would be sufficient or if the course is absolutely necessary. A little background... I am a billing manager and have been a certified coder for over 10 years. I do not code on a day to day basis anymore but I have been working with many insurances on their HEDIS incentive programs. I would love to get back into ICD10 coding as it really was my passion when I became certified. I am asking for suggestions as I cannot purchase the entire course at this time but I can purchase the study guide. Also, are there any other resources I could use to prepare along with the study guide? I would appreciate any and all suggestions.